Store-bought Mayonnaise
Store-bought Mayonnaise is ready for future recipe links, aliases, forms, prep notes, and reviewed reference notes. It does not yet have a public recipe link.
Substitutions
Acceptable
Homemade -> Store-bought Mayonnaise
1/4 cup homemade or store-bought mayonnaise
The source lists this as an alternative in the same ingredient row.
Source: The Best Egg Salad Sandwich